Personally I commit almost all of the “book sins” (writing, highlighting, spine creasing and folding, the only thing I stand firm on is dog-earring. Why would I want to crease my pages?), but I really don’t get how other people feel no sense of respect for another persons book. I leant out a book to my friend and when I got it back it had split in half and the only thing holding it together was the cover like… how do you even read a book that hard? Luckily for her and me, I don’t mind all that much, but it really was baffling how other people don’t feel the same need to treat others’ books with kid gloves. Just because I don’t personally care about how my books look, or I personally find it comfortable to fold the books in half, doesn’t mean I would do any of that to someone else’s books. It’s really not hard to not damage a book.